MT 45Technical - Fast Heat - #5

The MT32 components are identical in diameter, and differ only in length. The bush features a replaceable heater/thermocouple assembly, and replaceable tips

If the temperature controller does not utilise 'soft start' technology, set the controller to 90°C in automatic or 10% in manual. Allow nozzle to 'soak' for 15 minutes before increasing to processing temperature. This step will help disperse anymoisture in the heater, and prolong heater life.

1. Grip the Body firmly in a vice, using the flats provided on the bush head.

2. Heat the assembly, either with the internal heater, or (better) by means of an external heater band.

3. When the plastic is soft, unscrew the Bush Tip assembly - NOTE the Insulation Ring must also turn until the Bush Tip Location Dowel disengages from it.

4. Now slide off the Insulation Ring and Support Ring.

5. To remove the heater, first remove the Circlip with circlip pliers.

6. Next, spring open the Heatshield with the circlip pliers, and slide off.

7. Now remove the heater by twisting it to open the coil diameter slightly, and sliding it off the Body.

8. To remove the Gate Tips, unscrew their setscrews in the Bush Tip, and drive the Gate Tips out of the Body Tip with a soft drift.

1. Re-assemble in reverse order to the above.

2. Fit the Bush Heater in place, ensuring it makes good contact with the Bush Body.

3. Open the Heatshield with circlip pliers and slide over the Heater.

4. Refit the Circlip in front of the heater.

5. Slide the Support Ring and Insulation Ring into place, ensuring the latter is free to rotate.

6. Fit any new Gate Tips into the Bush Tip, drive them fully home with a soft drift, and tighten the set screws.

7. Screw the Bush Tip assembly into the Bush Body, ensuring that the Location Dowel locates correctly into the Insulation Ring, and tighten to 41 Nm.

240V AC—15 amp fuse.

Grounding—Fast Heat nozzles utilise the direct contact of the nozzle mould plates, and machine platens to establish a path for grounding.

There must be a ground present between the mould 'Hot Half' and the temperature control system or damage may occur to the heater, thermocouple and / or temperature control system.

International Manufacturing & Sales Offices: China Tel: (86) 21 5048 0070 U.K. Tel: (44) 1323 647375 France Tel: (33) 4 77 49 36 46

Hot Runner Systems by Fast Heat 1-877-RUNRHOT • (877-786-7468)

776 Oaklawn Avenue, Elmhurst, IL 60126 Ph: 1-630-833-5400 • Fax: 1-630-833-5414

www.fastheat.com • email: hotrunner@fastheat.com

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